This is a note to let you know that I've just added the patch titled

media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF

to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: media-v4l2-compat-ioctl32.c-add-missing-vidioc_prepare_buf.patch and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 3ee6d040719ae09110e5cdf24d5386abe5d1b776 Mon Sep 17 00:00:00 2001

From: Hans Verkuil hans.verkuil@cisco.com Date: Wed, 24 Jan 2018 08:37:04 -0500 Subject: media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF

From: Hans Verkuil hans.verkuil@cisco.com

commit 3ee6d040719ae09110e5cdf24d5386abe5d1b776 upstream.

The result of the VIDIOC_PREPARE_BUF ioctl was never copied back to userspace since it was missing in the switch.

Signed-off-by: Hans Verkuil hans.verkuil@cisco.com Acked-by: Sakari Ailus sakari.ailus@linux.intel.com Cc: stable@vger.kernel.org # for v4.15 and up Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Mauro Carvalho Chehab mchehab@s-opensource.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 1 + 1 file changed, 1 insertion(+)

--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c +++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c @@ -996,6 +996,7 @@ static long do_video_ioctl(struct file * err = put_v4l2_create32(&karg.v2crt, up); break;

+ case VIDIOC_PREPARE_BUF: case VIDIOC_QUERYBUF: case VIDIOC_QBUF: case VIDIOC_DQBUF:

Patches currently in stable-queue which might be from hans.verkuil@cisco.com are

queue-3.18/media-v4l2-compat-ioctl32.c-copy-m.userptr-in-put_v4l2_plane32.patch queue-3.18/media-v4l2-compat-ioctl32.c-avoid-sizeof-type.patch queue-3.18/media-v4l2-compat-ioctl32.c-drop-pr_info-for-unknown-buffer-type.patch queue-3.18/media-v4l2-compat-ioctl32.c-add-missing-vidioc_prepare_buf.patch queue-3.18/vb2-v4l2_buf_flag_done-is-set-after-dqbuf.patch queue-3.18/media-v4l2-compat-ioctl32.c-refactor-compat-ioctl32-logic.patch queue-3.18/media-v4l2-ctrls-fix-sparse-warning.patch queue-3.18/media-v4l2-compat-ioctl32.c-fix-ctrl_is_pointer.patch queue-3.18/media-v4l2-compat-ioctl32.c-move-helper-functions-to-__get-put_v4l2_format32.patch queue-3.18/media-media-v4l2-ctrls-volatiles-should-not-generate-ch_value.patch queue-3.18/media-v4l2-compat-ioctl32.c-don-t-copy-back-the-result-for-certain-errors.patch queue-3.18/media-v4l2-compat-ioctl32.c-make-ctrl_is_pointer-work-for-subdevs.patch queue-3.18/media-v4l2-compat-ioctl32.c-fix-the-indentation.patch queue-3.18/media-v4l2-compat-ioctl32-copy-v4l2_window-global_alpha.patch queue-3.18/media-v4l2-ioctl.c-don-t-copy-back-the-result-for-enotty.patch queue-3.18/media-v4l2-compat-ioctl32.c-copy-clip-list-in-put_v4l2_window32.patch